Operate: When sun shines at the solar panel, connecting the interfaces and the fan could start When the sunlight is insufficient, the fan will work slowly or even stop working Suitable for small chicken coops, greenhouses, sheds, and pet houses to keep the air freshs by pushing out hot air and bringing in cold air Light weight and compact, this fan is easy to carry and quickly install, allowing you to enjoy refreshing airflows whenever and wherever you need it—be it indoors or outdoors Processed with waterproof coating to rainwater intrusion, ensuring in both indoor and outdoor environments Taking into account the ventilation requirements of the chicken coops, effectively reducing the internal temperature, improving air circulation, and creating a comfortable breeding environment, Manufacturer: JAZUAIAO